Thread:Allofyou/@comment-34252725-20180317144717/@comment-31398341-20180320102317

Since you're gonna use Marshadow and Bisharp, I would start suggesting 3rd Pokemon onwards.

Ferrothorn is pretty much a must on every teams, and this is no exception due to its ability to use Stealth Rock. Stealth Rock is particularly useful for Marshadow and Bisharp to nail some OHKOes better for sweeping. It gives a useful resistances and counters Greninja.

Psychic type synergizes well with the team (Psychic + Dark + Fighting core), and the fact that Ferrothorn and Bisharp hates Fighting types make Psychic type an asset to the team. Mega Slowbro is the best option. Not only it gives a switch in to fighting types, but it also counters Mega Salamence and Mega Charizard X, the threats that this team is weak to. Latios and Latias are viable as well.

Mandibuzz counters Marshadow and Aegislash, and it is picked over Toxapex due to its synergy, ability to pivot with U-Turn and Defog.

Volcarona is used as a special sweeper and benefits a lot from the team.

Will give the sets later.